Material applying apparatus



FIG. I

FIG. 2

M. L. SVIKHART 2,376,832

MATERIAL APPLYING APPARATUS May 22, 1945.

Filed Dec. 5, 1942 HVVEWITOR M. L. SW/(HART es mm A r-ro/a/u'r the tank.

Patented May 22, 1945 2,376,832 I MATERIAL'APPLYING armnaros Miles L.Svikhart, Garden City Park, N. Y., as-

signor to Western Electric Company, Incorporated, New York, N. Y., acorporation of New.

York

Application December 5, 1942, Serial No. 467,962

7 Claims.

This invention relates to material applying apparatus, and moreparticularly to apparatus for applying glue to lock box joints in woodenparts for assembly. I i

In the assembly of wooden parts through the gluing of their joints, thespeed of the assembly of such parts and the strength of their jointsdepend largely upon the speed and efficiency of the application of glueat the proper locations.

An object of the invention is to provide a material applying apparatus,and more particularly a simple, efficient and highly practical apparatus7 for applying material to the walls of apertures in sideredinconjunction with the accompanying drawing, wherein Fig. 1 is a topplan view of the apparatus, portions thereof being broken away;

Fig. 2 is an enlargedfragmentary sectional view taken along the line 22of Fig. 1;

Fig, 3 is a fragmentary detail View taken substantially along the line3-3 of Fig. 1; g

Fig. 4 is an enlarged fragmentary top plan view of a portion of theapparatus illustrating two of the material applying elements, and I Fig.5 is a fragmentary sectional view taken along the line 55 of Fig. 4.

Referring now to the drawing, attention is first directed to Figs. 1 and2, which illustrate a sup port Ill, which in the present instance ismounted upon a bench II, the latter being provided with an aperture l2therein. The support in may be of any size depending upon the size ofarticle [4 which is to be. treated. A pairof brackets [5, se-

- the sides of the support to receive and support a tank I If The tank11 extends the full width of'the support l and is substantiallysemi-cylindrical in cross-section. The inner portion of the tank isformed into a lip l8 which lies upon angular portions of the brackets lto catch any excess material 20 during the operation of the apparatusand cause this excess material to drain back into It will now beobserved that the purpose of the aperture I2 is to receive the lowerportions of the brackets 15 and the tank IT. The material in the presentinstance is a liquid glue of the type desired to join wooden articles orparts. Consid ering for the moment the article [4, it will be observedthat the forward edge thereof is provided with a plurality of aperturesor notches 2| which are of the type used in forming lock box joints. Tosecure two similar parts or articles together merely by gluing of theprojections of each part in the notches of the other, his 1121-portant'that all surfaces of the notches orapertures be completelycovered with glue. To accomplish' this purpose material or glue applyingelements, indicated generally at 23, are employed. These elements areidentical in structureand a description of one will apply to them all.

Consider, for example, the element shown in Fig. 2. This element in thepresent embodiment is formed of wood, it being understood, however, thatit could be formed of any desired material. The width of the element, asillustrated in Fig. 4, is slightly less than the width of the apertures2|, allowing a sufiicient clearance for the passage of the element intothe aperture with whichit is registered and the passage of the glue onthe element therewith. This clearance is sufficiently small, however, tocause wiping of the glue or material. onto the walls of. the apertureduring move& ment of the element into and out of the aperture. This sameclearance exists between the end of the element and the inner wall ofthe aperture. The element, however, is beveled, at 25, at its forward orleading edge, to allow entering of this portion of the element into'theaperture through an arcuatemovement of the element and to position themajor portion of the'forward surface of the element adjacent the innerwall of the aperture as illustrated in Fig. 5. The forward portion ofthe element is also beveled at each side, as indi: cated at 26, tofurther assist in the entering of the element into the aperture. In theforward portion of the element is disposed a pocket 21, to receive anadditional amount of material to. be

carried into the aperture, outlets 28 being providedto direct thisquantity of material. to the or between the element tures. The plate 30performs twofunctions, its, main function beingto serve as a stop forthe movement of the elements and to locate the forthe element '23 isprovided with a slot 32 and an aperture 33, the latter being adapted toreceive a shaft 34 while the former provides the element at this portioninto two halves which may. be drawn together through the aid of a bolt35 for the rigid mounting of the element upon the shaft.

In the present embodiment there are eighteen elements of the typedescribed, these elements being mounted at spaced positions upon theshaft 34 so that they will respectively register with the apertures 2!in the article l4. The shaft 34 is supported in suitable bearings ofbrackets 40., the latter being secured, as at 4!, to the sides of thesupport ID. A suitable crank 42 is mounted upon one end of the shaft 34,which has a connecting portion 43 adapted to hold the shaftagainst'movement in one direction, a collar 44 mounted upon the oppositeend of the shaft. holding the shaft against movement in the oppositedirection. 1

Attention at this time is directed to locating elements 45, three ofwhich are employed in the presentembodiment, these elements beingidenti-- cal in structure. By viewing Fig. 2, it will be noted that theelements are mounted upon selected bolts 35 of certain of the elements23, assisted by the aid of screws 45. The elements exitend at rightangles from their respective elej ments. 23"and have their forward endscurved as at 41, to provide rounded ends for the elements to engage theinner walls of their respective apertures 2L locating elements 45 arebeveled, as at 48, to assure entering of the locating elements in theirrespective 'aperatures and lateral adjustment of the article if such isfound necessary.

There is one feature of the tank which has not beenpreviously'described, reference being made to a' 'forward'cover portion50 which has a down;- wardly bent lip 5|, this portion extending'overa'given area-tank and for the full length thereof toeli'niina'te thepossibility of splashing any of the material 20 out of the tank, toserve as-a stop when abutted by the plate 30 of the elements in onedirection and to serve as a stop when; adapted by the locating elements45 during their movement in the opposite direction.

- Upon considering the operation of the apparatus, let it beassumed thatthe tank I! is sup.- plied with a desired material 20 to a given level,as illustrated, and that the elements 23 and 45 are in the positionsshown in Fig. 2. When in these positions an article I4 may be placedupon the support In and moved toward the elements 45 uritilstoppedbythese elements, with the ends ofthe elements positioned in givenapertures 2| of the article. In this manner the article isaccuratelylocated to receive the materialapplyjing'elements. If, duringthe movement of the article into position, it should not be in directalignment with the preferred position,- the locat- The sides of theleading ends of the 1 41 of the locating elements give the articleadesired longitudinal location with respect to the material applyingelements 23. It is not found necessary to provide any clamping orvholding means for the article once it is located. It is moved intoposition by one hand of the operator and is advisably held in thisposition in the same manner during the rotation of the shaft 34 throughthe aid of the crank or handle 42, to

bring the elements 23 from the position shown in Fig. 2 to the positionshown in Figs. 4-. and 5. During this. movement of the shaft and theelements, the forward portions of all of the elements'will transfer ontheirsurfaces given quantities of the material to further transfer thesea quantities to thewalls of their respective apertures 2 I Thepreviously described clearances between the elements and the walls ofthe apertures will be sufiicient for the passage of given quantities ofthe material into the aperturesthe pockets 21 carrying additionalquantities of the.

material which will be allowed to pass through their outlets 28 at theupper portions of the walls of the apertures. Thus it is apparent thatduring the upward swing of an element into its aperture, all portions ofwalls of'the aperture will 7 be covered with the material. 'However, dueto the fact that the elements enter the bottomsof th apertures, theremay be more material'a'pplied there than'at the tops. 'Themovement of 7out of the aperture, thus providing a double aD- plying means, first,the application of the ma terialon the outer walls of the element 23,and second, the application of the material brought in the pocket to theapplying position and then applied in a reverse order to the walls'ofthe aperture. This assures a'clearer coveringof all portions of thewalls of the aperture." I

Although'specific improvements of the invention have been shownand'described, it willbe understood that they are, but illustrative andthat various modifications may be made therein with out departing fromthe scope andspirit of this invention as defined by the appended claims,

What is claimed is:

l. A material applyingapparatus comprising 3 a support for an articlehaving apertures therein, a tank for a supply of materiaL'materialapplying elements having contours adapted to substantially fill theapertures, means to cause the elements toremove quantities of thematerial from the supply and cover the walls'o fthe aperturestherewithpand means receivable in certain of the apertures to locate thearticle'relative to the elements.

ing elements 45, through their bevelled surfaces 48. will effect ashifting of the article to bring it into the desired position. Thusthrough the sides 2. A material handling apparatus comprising a supportfor an article having a notch therein, a tank for a supply of material,an element hav ing an end portion with walls substantially con formingto respective walls of the notch, a pivotal support for the element,'means'to move the respective walls of the notch, and means mounted tobe supported by and be moved with the'piv'otal support to enter thenotch to relative to the element. s

3. -A material handling apparatus comprising a support for an articlehaving a notch therein, a tank for a supply of material, an elementhaving an end portion with Walls substantially conforming to respectivewalls of the notch, a pivotal support for the element, means to move thepivotal support to move the element and cause the walls of the endportion to transport quantities locate the article of the material fromthe supply to their respective-walls of the notch, and means mounted to-be supported by the pivotal support and receivable in the notch tolocate the article relative to the element.

4. A material handling apparatus comprising a support for an articlehaving a notch therein,

' port the elements for rotation about a given axis a tank for a supplyof material, an element hav- 7 ing an end portion with wallssubstantially conforming to respective Walls of the notch, a pivotalsupport for the element, means to move the pivotal support to move theelement and cause the walls of the end portion to transport quantitiesof the material from the supply to their respective walls of the notch,and a member mounted to be supported and moved by the pivotal support sothat an end thereof is receivable in the notch when the end portion ofthe element is in the supply to locate'the article relative to theelement.

5. A material handling apparatus comprising a support for an articlehaving a notch therein, a tank for a supply of material, an elementhaving an end portion with walls substantially conforming to respectivewalls of the notch, a pivotal support for the element, means to move thepivotal support to move the element and cause the walls of the endportion to transport quantities of the material from the supply to theirrespective walls of the notch, and a member carfor movement of like endsof the elements from the supply to move quantities of the materialtherefrom through arcuate paths into their respective apertures to coverthe walls thereof with the material, and a member secured at the ends ofthe elements to engage the article and stop movement of the said endsthrough the apertures.

7. A material handling. apparatus comprising a support for an articlehaving spaced apertures therein, a tank. for a supply of material,material applying elements having contours adapted to substantially fillthe apertures, means to support the elements forrotation about a givenaxis for movement of like ends of the elements from the supply to movequantities of the material therefrom through arcuate paths into theirrespective apertures to cover the walls thereof with the material, and amember mounted to be supported by the supporting means and having itsouter end spaced from the said ends of the ele-' ments and positioned toenter one of the apertures when the ends of the element are in thesupply to locate the article relative to the elev

